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Cornea nerve fiber changes after the flapless femtosecond refractive procedure SMILE versus femtosecond LASIK

Session Details

Session Title: Refractive Femtosecond

Session Date/Time: Sunday 06/10/2013 | 17:00-18:30

Paper Time: 18:12

Venue: Elicium 2 (First Floor)

First Author: : I.Solomatin LATVIA

Co Author(s): :    J. Gertnere   A. Solomatin   M. Solomatin        

Abstract Details


The purpose of the work was to compare the numbers, and the density of the subbasal nerve fibers during the post op period, (1-6 months) after the flapless procedure SMILE (small incision lenticule extraction) and Femtosecond LASIK.


Dr. Solomatin Eye Center, Riga, Latvia


Were recruited two group of patients 20 (40 eyes) for SMILE procedure and 20 patients (40 eyes) for LASIK. SMILE procedure were performed using the 500 kHz femtosecond laser Visumax and Femto LASIK with the same femtosecond laser and eximer laser MEL 80(Carl Zeiss Meditec ). We recently examined the changes in trigeminal nerve density by studying the nerve structure under a confocal specular microscope NidekConfoscan 4 preop and in 1 month, 3 months and 6 months postop.


Compared with the preoperative levels trigeminal nerve density decreased to 10% at 1 and to 20% 6 months postop respectively. With flapless refractive procedure trigeminal nerve density decreased to 50% and 60% at 1 to 6 months postop.


Comparing the results from this two groups of patients, we were able to show that, although both surgical techniques cause density decrease, small incision lenticule extraction has the potential to preserve trigeminal nerve density better than Lasik.

Financial Interest:

... research is funded, fully or partially, by a company producing, developing or supplying the product or procedure presented

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